H3C OpenStack SeerEngine-DC, Installation Manual, Page: 17 / 19

13
FAQ
The Python tools cannot be installed using the
yum command when a proxy server is used for
Internet access. What should I do?
Configure HTTP proxy by performing the following steps:
1. Make sure the server or the virtual machine can access the HTTP proxy server.
2. At the CLI of the CentOS system, use the vi editor to open the yum.conf configuration file. If the
yum.conf configuration file does not exist, this step creates the file.
[root@controller ~]# vi /etc/yum.conf
3. Press I to switch to insert mode, and provide HTTP proxy information as follows:

If the server does not require authentication, enter HTTP proxy information in the following
format:
proxy = http://
yourproxyaddress : proxyport

If the server requires authentication, enter HTTP proxy information in the following format:
proxy = http:// yourproxyaddress : proxyport
proxy_username= username
proxy_password= password
Table 3 describes the arguments in HTTP proxy information.
Table 3 Arguments in HTTP proxy information
Field Description
username Username for logging in to the proxy server, for example, sdn .
password Password for logging in to the proxy server, for example, 123456 .
yourproxyaddress IP address of the proxy server, for example,
172.25.1.1
.
proxyport
Port number of the proxy server, for example, 8080 .
proxy = http://172.25.1.1:8080
proxy_username = sdn
proxy_password = 123456
4. Press Esc to quit insert mode, and enter :wq to exit the vi editor and save the yum.conf file.
After the plug-ins are installed successfully, what
should I do if the controller fails to interconnect
with the cloud platform?
Follow these steps to resolve the interconnection failure with the cloud platform:
1. Make sure you have strictly followed the procedure in this document to install and configure the
plug-ins.
2. Contact the cloud platform vendor to determine whether a configuration issue exists on the
cloud platform side.